Isolation Units in England and Wales

TB Isolation Units can enable the isolation and testing of TB restricted cattle from a single source, potentially allowing them to be de-restricted (in a controlled way) before movement restrictions on other cattle groups in the herd are lifted.

Visit for an APHA application form and guidance notes for Isolation Units in England and Wales.


Summary of conditions for the approval and operation of Isolation Units in England:

  • Must be licenced and approved by APHA, they must have a separate and unique CPH;
  • Can only source cattle from a single TB restricted holding, not from multiple premises;
  • Strict biosecurity protocols must be in place, including wildlife proofing and protocols for movements of personnel and equipment between the unit and other cattle under the same ownership;
  • Grazing may be allowed in TB Isolation Units in annual testing areas in England, but only if APHA consider there is a low risk of local spread of infection.
  • Cattle over six weeks of age must have had a clear TB test within the previous 30 days;
  • Must be filled in a six week period;
  • Once the TB Isolation Unit has been closed, testing within the unit will be at 60 day intervals;
  • After two clear consecutive tests have been completed, and providing the last test is at least 120 days after the date that the unit was closed, restrictions may be lifted.